<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图区域 -->
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input
                        placeholder="请输入内容"
                        v-model="queryInfo.query"
                        clearable
                        @clear="getGoodsList"
                    >
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddPage">添加商品</el-button>
                </el-col>
            </el-row>

            <!-- table表格区 -->
            <el-table :data="goodsList" border stripe>
                <el-table-column type="index" label="#"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
                <el-table-column label="创建时间" prop="add_time" width="140px">
                    <template v-slot="scope">{{scope.row.add_time | dateFormat}}</template>
                </el-table-column>
                <el-table-column label="操作" width="130px">
                    <template v-slot="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                        <el-button
                            type="danger"
                            icon="el-icon-delete"
                            size="mini"
                            @click="removeById(scope.row.goods_id)"
                        ></el-button>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[5, 10, 15, 20]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total"
                background
            ></el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
    data() {
        return {
            //查询参数对象
            queryInfo: {
                query: "",
                pagenum: 1,
                pagesize: 10
            },
            //商品列表
            goodsList: [],
            //总数据条数
            total: 0
        };
    },
    created() {
        this.getGoodsList();
    },
    methods: {
        //根据分页获取对应的商品列表
        async getGoodsList() {
            const { data: res } = await this.$http.get("goods", {
                params: this.queryInfo
            });

            if (res.meta.status !== 200) {
                return this.$message.error("获取商品列表失败");
            }
            this.$message.success("获取商品列表成功");
            this.goodsList = res.data.goods;
            this.total = res.data.total;
        },
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize;
            this.getGoodsList();
        },
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage;
            this.getGoodsList();
        },
        async removeById(id) {
            const confirmResult = await this.$confirm(
                "此操作将永久删除该商品, 是否继续?",
                "提示",
                {
                    confirmButtonText: "确定",
                    cancelButtonText: "取消",
                    type: "warning"
                }
            ).catch(err => err);

            if (confirmResult !== "confirm") {
                return this.$message.info("已取消删除");
            }
            const { data: res } = await this.$http.delete(`goods/${id}`);
            if (res.meta.status !== 200) {
                return this.$message.error("删除商品失败");
            }
            this.$message.success("删除商品成功");
            this.getGoodsList();
        },
        //添加商品
        goAddPage() {
            this.$router.push('/goods/add')
        }
    }
};
</script>

<style lang="less" scoped>
</style>